Paging Optimization Using RIC/ORAN in 5G and 4G Systems

Abstract

In one embodiment, a method is disclosed for providing paging optimization using RIC/ORAN in 5G and 4G Systems, the method comprising: creating, by the RIC, mobility context and updating the mobility context based on UEs mobility information received from the CUs and eNBs; pushing, by the RIC, the policy to connected O-CUs/O-eNBs to forward paging whenever received from AMF/MME; buffering, by the O-CU/O-eNB buffers, the paging message, starting a timer and forwarding the paging message to RIC; performing, by the RIC, an STMSI lookup and if the RIC finds the UE context, identifying a target O-CU/target O-eNB and sending the corresponding DU/sectors where paging needs to be sent based on a calculated UE location; sending, by the targeted O-CU/O-CUs/O-eNBs, stage 1 paging to the DU/sectors; intimating, by the O-CU/O-eNB, the RIC about successful paging and deleting the buffered paging; notifying, by the RIC, other O-CUs/O-eNBs for paging cancellation so that other O-CUs/O-eNBs discard the buffered paging message; and continuing, by the O-CU/O-eNB, with normal paging when no paging cancellation is received from the RIC.

1 . A method of providing paging optimization using RIC/ORAN in 5G and 4G Systems, the method comprising:
 creating, by the RIC, mobility context and updating the mobility context based on UEs mobility information received from the CUs and eNBs;   pushing, by the RIC, the policy to connected O-CUs/O-eNBs to forward paging whenever received from AMF/MME;
 buffering, by the O-CU/O-eNB buffers, the paging message, starting a timer and forwarding the paging message to RIC; 
 performing, by the RIC, an STMSI lookup and if the RIC finds the UE context, identifying a target O-CU/target O-eNB and sending the corresponding DU/sectors where paging needs to be sent based on a calculated UE location; 
 sending, by the targeted O-CU/O-CUs/O-eNBs, stage 1 paging to the DU/sectors; 
 intimating, by the O-CU/O-eNB, the RIC about successful paging and deleting the buffered paging; 
 notifying, by the RIC, other O-CUs/O-eNBs for paging cancellation so that other O-CUs/O-eNBs discard the buffered paging message; and 
 continuing, by the O-CU/O-eNB, with normal paging when no paging cancellation is received from the RIC.